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प्रश्न
Calyx : Sepals : : Corolla : ________________
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उत्तर
Calyx : Sepals : : Corolla : Petals
APPEARS IN
संबंधित प्रश्न
Match the following:
| Column A | Column B |
| (i) Stigma | (a) Neuron |
| (ii) Pepsin | (b) Carpel |
| (iii) Dendrites | (c) Protein |
| (d) Stamen |
A student has to perform the experiment "To identify the different parts of an embryo of a dicot seed." Select from the following an appropriate group of seeds:
(a) Pea, gram, wheat
(b) Red kidney bean, maize, gram
(c) Maize, wheat, red kidney bean
(d) Red kidney bean, pea, gram
Give one example of a unisexual flower.
State the function of flowers in the flowering plants.
A flower may have either male or female reproductive parts. Such a flower is called ______.
The fusion of male and female gametes is termed as ______.
Mature ovary forms the ______.
Where are a plant's sex organs located?
What is the name of female part of a flower?
Fill in the following blank with suitable word :
The female organ of reproduction in the flower is the...........
Explain the terms 'cross-pollination'?
What type of plants reproduce by sexual reproduction method?
In tobacco plant, the male gametes have 24 chromosomes.
What is the number of chromosomes in the female gamete?
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Fill in the blank:
Seeds are formed from________.
State whether the following statement is true (T) or false (F):
Stamens make egg cells.
State whether the following statement is true (T) or false (F):
Flowers which possess stamens and carpel are called unisexual.
Mention the function of Flower.
Mention the function of Stigma.
Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
In the figure, the parts marked A, B and C are sequentially:
(A) Plumule, Radicle and Cotyledon
(B) Radicle, Plumule and Cotyledon
(C) Plumule, Cotyledon and Radicle
(D) Radicle, Cotyledon and Plumule
Draw a diagram of a pistil showing pollen tube growth into the ovule and label the following:
Pollen grain, male gamete, female gamete, ovary.
Draw a diagram of the longitudinal section of a flower and label the following parts.
Write the events involved in the sexual reproduction of a flowering plant.
Discuss the first event and write the types.
In which of the following manner the arrangement of megaspores in a tetrad is observed in angiosperms?
Identify the female gametophyte in angiosperms.
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its roots tip cells?
Sperm and egg nuclei fuse due to ______.
In a flowering plant, archesporium gives rise to ______.
Variations occur as a result of ______
Length of pollen tube depends on the distance between ______
Give reason for the following:
Fertilization cannot take place in flowers if pollination does not occur.
Where is the zygote located in the flower after fertilization?
State the number of sets of chromosomes present in a zygote.
Give any two examples of agents of pollination.
Triple fusion involves ______.
- Assertion: Primary endosperm nucleus is diploid.
- Reason: It is the product of double fertilisation.
